The invention relates to a colored filter which comprises a base plate, a shading layer, a plurality of first colored filtering patterns and a plurality of second colored filtering patterns. The shading layer is provided with a plurality of openings that are arranged in array, wherein, the base plate is exposed through the openings. The first colored filtering patterns are parallel and staggered with the second colored filtering patterns. The first colored filtering patterns are positioned at a part of the openings and overlapped with the neighboring shading layer, and a first overlapping width is kept between the first colored filtering patterns and the shading layer. The second colored filtering patterns are positioned at the other part of the openings and overlapped with the neighboringshading layer, and a second overlapping width is kept between the second colored filtering patterns and the shading layer. The second overlapping width is not equal to the first overlapping width. The colored filter uses the colored filtering patterns with different colors and the size difference of the overlapping parts between the colored filtering patterns and the shading layer to improve theoptical quality of the colored filterer, thus improving the optical quality of a display device.